Controller-switch.



No. 814324. PATENTED MAR. 6, 1906. T. S. PERKINS &L R. P. JACKSON.

CONTROLLER SWITCH.

APPLIOATION PILED JUNB 6,1904.

TNITED STATES PATENT OFFICE.

THOMAS S. PERKINS ANII) RY P. J CKSON, OF WILKINSBURG, PENNSYD VANIA, ASSIGNORS TO WESTINGHOUSE ELEUTRIC & MANUFACTURING COMPANY, A CQRPORATION OF PENNSYLVANIA.

CONTROLLER-SWITCH.

speciflcation of Letters Patent.

Patented March 6, 1906.

Application filed J une 6, 1904:. Serial No. 211.369.

The object of our invention is to .provide a controller-switch of simple andinexpensive construction in which the blow-out coil operates to blow the arcs which ordinarily occur when enga enent is' interrupted between contact-su aces of the' drum-segments and the contact-fingers of controllers outwa 'dly` regardless of the direction of rotation ofjthe r'njent 2'is a piece 21 of magnetic material :shap'ed -so as to form pole-pieces 22 and 23, which are respectively adjacent to the contact fingers 16 and 17 when the switch is in its initial or OP' position.

drum.

In an application, Serial No. zseafid by us of even' date' herewith we have set fortit;- the essential features of a system of multiple control for electric motors by means of which all of the units of a train may be individually or collectively controlled from some one remote point at which the master-switch comprising our present invention is located.

Our invention is illustrated in the accom panying drawings, in which- Fgure 1 is a sim le diagrammatic view of the connections an relations of its elements. Fig. 2 is a view in side elevation of the switch embodyng our invention, the casing 'of which is shown in section. Fig. 3 is a View in front elevation of the switch shown in Fig.` 1, the asing and operating-handle being removed. Figi 4 is a detail View of one of the drum-segments, and Fig. 5 is a view in section on line V V of Fig. 2.

.Upon a shaft 1 having a squared body 'portion are mounted drum-seg'ments 2 and 3, having contact-surfaces 4 and 5 and 6 and 7, respectively, the shaft 1 being journaled at one end in a frame 8 and at its other end in a bracket 9 of any suitable non-magnetie material. The portion of the frame 8 adjacent to the bearing for the shaft 1 is so shaped as to form ole-pieces 10 and 11, which will be more ful y described hereinafter.

Between the drum-segments 2 and 3 and concentric with the shaft 1 is a blow-out coil 12, having its terninals connected, respec -tively, to said drun-segnents and having its middle point connected to a segment 13 of ring form, which is mounted upon an insulating-cylinder 14, surrounding the coil 12. Disks or other propcrly-shaped pieces 15 of' an suitable non-conducting material are provi ed between the drum-segments and between the drun-segments and the pole-pieces for the purpose of preventing arcing between the said parts.

Secured to the base of the frame 8 upon a block or plate 15 made of any suitable insu- 'lating material, are fingers 16 and 17 and 18 and 19, which are adapted to engage, respectively, with the contact-surfaces of the drumsegment 2 and with the contact-surfaces of the drum-segment 3 and also a contact-finger 20, which engages the ring 13. Mounted upon the shaft 1 adjacentto the drum-segthe shaft 1 is a helical spring 27, the ends o f` which are extended, so as to embrace between them pins 28 and 29, that are Secured, respectively, to the bracket Qand to a piece 30, which is mounted upon the shaft 1. Means are thus provided for retarding the rotation of the operating-handle 24 and for returning it to its initial position when it is released.

The coperation of parts here shown t cause the arcs which ma be formed between the drum-segments an the contact-fingers to be blown outwardly may be best understood from a consideration of Fig. 1. In the first position F of the switch the finger 16 engages the contact-surface 4: and a circuit is established from any suitable source T contact-finger 20, drum-ring 13, one- 17 ,and a circuit is then establishe through any other suitable solenoid 32 or other translating device to the grou'nd G, and in position M contact-surface 6 of the drum-segment 3 enga es finger 18, and a circuit is then establishe through any other suitable solenoid 33 to the ground G. Simi1arly,for rotation of the switch in the opposite direction the fingers 19, 17, and 18, respectivel engage With the contact-surfaces 6, 4, &113 7 positions R, S', and N, the circuit then being established through the other half of the blow-out coil 12 and through the solenoids 34, 32, and 33 successively.

It is evident that an outward blow of the arc always occurs, since only one-half of the blow-out coil is useful at an one time, and

the direction of the flux in t e magnetic circuit is reversed With res ect to the direction of the flow of current etween the fingers and the rings as the direction of rotation of the drum is reversed.

While We have described our invention a's particularly applicable to the system of control set forth in the subject-matter of our aplication Serial No. 211,368, we do not wish it limited to such s ecific use, as it is evident that variations wit reasonable limits may be made in the connections and arrange- Inents of parts, as well as in `the a paratus which it is intended to operate, wit out departing rom its scope.

We claim as our invention- 1. A controller-switch comprising a shaft, drum-segments mounted thereon, pole-pieces carried by said shaft., a blow-out coil and stationary pole-pieces that coperate with said shaft and its pole-pieces to provide a magnetic circuit for the coil.

2. A controller-switch comprising a shaft, drumsegments mounted thereon, pole-pieces carried by said shaft, a blow-out coil concentrc with the shaft, and stationary pole-pieces that coperate With the shaft and its polepieces to provide a magnetic circuit for the low-out coil.

3, A controller-switch comprising a shaft,

drum-segments mounted thereon, stationary e blow-out coil 12, drum-segment 4,

for the i 'tion of the latter.

&14,324

pole-pieces at one end of saidshaft and cor`- res ending pole-pieces at the other end of o an carried by said shaft, said pole-pieces and shaft forming parte of the same magnetc circuit.

4. A controller-switch comprising a shaft, drum-segmente mounted thereon, stationa'y poleieces at one end of said shaft, correspon ing pole-pieces at the other end of and carried by said shaft and a blow-out coil concentric 'with the shaft, said pole-pieces and shaft forming parts of the same magnetic circuit.

5. A controller-switch comprsing a shaft, dmm-seg'ment-s mounted thereon, contactjners which eng'age respectively therewithan a blow-out coil concentric with .said shaft the terminals and middle point of which are so connected to the drum-tinga as to cause an outward blow of the arc due to the disengagement of -said fingers from said segmente, regardless of the direction of rota- 6. A controller-switch comprising a shaft, drum-segments mounted' thereon, contactfingers which engage respectively with said segments and a blow-out coil having its termnals and middle point respectively connected to said segmente.

7. A controller-switch comprising a shaft, drum-segments mounted thereon, contactfingers which engage respectively with said segments and a twoart blow-out coil mounted upon said sha t and connected to said segmente, the one or the other part of said coil being energized to produce a magnet'ic flux in said shaft respectively in the one or 'the other direction accordingto the direction of rotation thereof.

8( A controller-switch comprsing a shaft, drum-segments mounted thereon, stationary poleieces at one end of said shaft, correoo spon in poleieces at the other end of and carried sai shaft and a two-part blowout windng concentric with said shaft, the one or the other part thereof being energized to produce a magnetic flux between the said stationary and rotatable pole-pieces in the one or the other direction according to the direction of rotation of the shaft.

` In testimony whereof we have hereunto subscribed our names this 31st day ofkMay, uc-

BIRNEY HINES. 

